Pen



FIG. 1 is an exploded left side perspective view of a pen showing my new design;

FIG. 2 is a left side elevational view of the pen of FIG. 1 shown without the other part for convenience of illustration;

FIG. 3 is a left side elevational view of the cap of FIG. 1 shown without the other part for convenience of illustration;

FIG. 4 is a top view of the blind cap of FIG. 1 shown without the other parts for convenience of illustration;

FIG. 5 is a front elevational view of the pen shown without the other parts for convenience of illustration;

FIG. 6 is a front elevational view of the cap shown without the other parts for convenience of illustration;

FIG. 7 is a bottom view of the cap shown without the other parts for convenience of illustration; and,

FIG. 8 is a left side elevational exploded view of the pen. 

CLAIM The ornamental design for a pen, as shown and described. 